TM-3-1040-268-20-P
LAUNCHER, GRENADE, SMOKE: SCREENING, RP, M250
TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)
MAY 1982
TM-3-1040-268-20-P - Page 18 of 72
TM 3-1040-266-20&P
Table 2-1. TROUBLESHOOTING PROCEDURES (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. DISCHARGER WON’T FIRE (CONT).
NOTE
Do not let multimeter probe prod touch connector rim. This will cause wrong reading.
Insure good contact by multi meter probe prod on test point. Poor contact will cause false meter reading.
Step 3.
Set range switch on Rx1000 and zero muitimeter. Touch red probe prod on pin B (ground) of electrical
receptacle connector (1). Touch black probe prod on bolt (2) on cover plate.
a. If meter reads zero (0) on OHMS scale, no fault.
Go to step 4.
b. If meter reads infinity (
∞
) on OHMS scale, open ground connection.
Replace ground wire. Remove and install (para 2-8d).
2-6
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